The Waveshare industrial kit combines RS485, CAN bus, and 4G for connecting legacy factory equipment to modern cloud platforms.
Kit Contents
- RS485 HAT for Modbus RTU devices
- CAN HAT for CAN bus networks
- 4G LTE HAT for remote connectivity
- DIN rail case for panel mounting
- Pi 4/5 with industrial power supply
Protocol Overview
- RS485/Modbus: Poll sensors, meters, and PLCs for data
- CAN bus: Read automotive/industrial CAN networks
- 4G LTE: Upload data to cloud from remote locations
- MQTT: Bridge all protocols to MQTT for dashboard integration
Gateway Architecture
Pi reads from RS485 and CAN devices locally, converts to MQTT messages, and publishes to a cloud broker via 4G. Dashboard (Grafana/Node-RED) visualises the data.
Deployment
- Mount Pi in DIN rail case inside control panel.
- Connect RS485 to Modbus devices (energy meters, sensors).
- Connect CAN to machine controllers.
- Insert 4G SIM for cloud connectivity.
- Configure Python scripts for each protocol.
Applications
- Factory energy monitoring (kWh tracking)
- Machine condition monitoring (vibration, temperature)
- Fleet vehicle diagnostics via CAN
- Remote water/oil pump monitoring
Frequently Asked Questions
How many Modbus devices?
RS485 supports up to 32 devices on a single bus. Each with unique address.
Both RS485 and CAN simultaneously?
Yes, different HATs use different interfaces (UART for RS485, SPI for CAN). Both can run at the same time.
Data security?
Use TLS/SSL for MQTT connections. VPN for additional security on 4G connections.
Cost vs industrial PLCs?
Pi-based gateway costs Rs.5,000-10,000 vs Rs.50,000+ for commercial industrial gateways. Not certified but excellent for monitoring and prototyping.
Conclusion
The industrial kit bridges legacy factory equipment with modern IoT platforms at a fraction of commercial gateway costs.
Browse the full Waveshare collection at Zbotic.in with fast shipping across India.
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